Theater Solutions C1 home theater 3-way center channel bookshelf speaker, recommended power is 10-200 watts, efficiency is 91dB, frequency response is 70Hz-22 kHz, 8ohm 3-way design and functionality, bi-laminate composite, balanced shielded woofers, ferro fluid cooled, titanium coated, balanced, shielded tweeter, 3KHz, 18dB per octave crossover frequency Dual rear port vents, spring loaded raw wire connections, non-resonant MDF enclosure with black wood grain finish, detachable black fabric grill, speaker size is (H x W x D) 6.5" × 18" × 7.5"

Built-in 52mm driver for Hi-fi stereo sound, S15 bluetooth speaker provides crisp, full-bodied music with impressive volume. S15 bluetooth speaker with 5000mAh rechargeable lithium battery provides up to 8 hours playback time. With solid aluminum alloy case provides smooth touch. And the touch control design makes the Bluetooth speaker easy to switch the mode, adjust the volume, change the songs and more.